package ddd.chen.com.push;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button btn=new Button(this);
        System.out.print("我终于会了呀");
        btn.setText("111122");
        System.out.print("我改了呀material.chen");
        btn.setText("1111CCCCCCCCCCCCCcccccccccc");
    }
}
